Long travel in a Model Y

It can be hard for people to have an open mind to doing things in a different way. I think this is common in the gas to EV world. I'm going on a trip with several people and some mental blocks are coming up. Maybe I'm just naive and assume the best though. I must vent and talk this through so I don't spiral and over react. 

People feel a resistance to the idea of charging and how many miles you can go on a charge. I've been driving an EV for 2 and a half years and love it. The furthest I've gone is 142 each way. It was a new experience, I had a little anxiety, but all-in-all it worked out. 

I'm ready to try a longer drive, 460 each way. My top two motivators are self-driving and I want to see the cost savings. I'm not worried about charging time, but a few people involved(not necessarily going, but involved) in the trip are pressed. Either way we'd have to stop to fuel, stretch, and change the baby. Charging stations aren't in the middle of know where. There are usually amenities. 

The next challenge people are worried about is space and comfort. I'm being selfish here because comfort on a drive never crosses my mind. I have a 7 seater and we're 3 adults, 1 rear-facing toddler, and 2 kids. It's only a 4 day trip, two being travel days, so we don't need to pack very heavy. That leaves an open seat and many compartments. We've considered taking a toe hitch rack, but are now reconsidering to make parking easier. 

I've had strong suggestions of borrowing an SUV or renting a van and I don't want to. Ultimately I'd love to fly, but got resistance for that. That leaves me with wanting to try this way of travel. If we hate it then we don't ever have to do it again. 

Again, it feels like a mental block to try a different way. I think it'll be okay.